package filter;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import exception.ExceptionHandler;

/**
 * Servlet Filter implementation class ExceptionFliter
 */
public class ExceptionFliter implements Filter {

    /**
     * Default constructor. 
     */
    public ExceptionFliter() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest)request;
		HttpServletResponse  resp = (HttpServletResponse )response;
		try {
			chain.doFilter(request, response);
		} catch (Exception e) {
			ExceptionHandler handler = new ExceptionHandler(e,req,resp);
			handler.handler();
		}
	}

	public void init(FilterConfig fConfig) throws ServletException {
	}

}
